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    <script>
        /*    求整数1～100的累加值，但要求跳过所有个位为3的数。 */
        let sum = 0;
        for (let i = 1; i <= 100; i++) {
            if (i % 10 == 3) {
                continue;
            }
            sum += i;
        }
        console.log(sum);
    </script>
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